chore: harden config, strengthen frontend typing, fix UTF-8 mojibake

Security config (3.1):
- config/session.ts: cookie.secure now follows app.inProduction instead of
  being hardcoded to false
- config/shield.ts: enable CSP with baseline directives compatible with
  Vite dev server and Inertia (self + @viteDevUrl/@viteHmrUrl)

Frontend typing (3.2):
- Replace 'any' props with concrete types (Computer, Component, ComponentType,
  ComputerState) across computers/*.vue and components/*.vue, using the
  existing inertia/pages/types/UITypes.ts definitions
- Fix UITypes.ts: export ComponentType/ComputerState, switch from interface
  to type (interfaces are never assignable to Inertia's ComponentProps index
  signature), drop the stale componentTypeId/componentStateId fields that
  didn't match the actual Lucid schema (real field is typeId, no component
  state exists)
- Add an asPageProp() boundary cast in the two controllers: Lucid's
  serialize() returns a loosely typed ModelObject that isn't structurally
  assignable to the concrete page prop shapes (and the inertia/** tree is
  excluded from the backend tsconfig, so real types can't be imported
  directly across that boundary)

UTF-8 mojibake fixes (3.3):
- Repair broken accented characters (├®/├á/├┤ -> é/à/ô, Ôé¼ -> €) left over
  from a bad encoding during the GWT->Inertia migration, across
  ComponentEditor.vue, ComputerComponentsTable.vue, SimpleGallery.vue,
  TableComponent.vue, isAdminMode.ts and the custom directives

Misc cleanup (3.5):
- computer.ts: replace console.warn with the app logger (includes
  computerId) when .cost is accessed without preloading components

inertia/pages/widgets/TableComponent.vue

@@ -38,7 +38,7 @@ function getIconPath(typeName: string): string {
     'WiFi-Card': wiFiCard,
     'Case': pcCase,
   }
-  return typeToIconMap[typeName] || defaultIcon // Utilisez une ic├┤ne par d├®faut si n├®cessaire
+  return typeToIconMap[typeName] || defaultIcon // Utilisez une icône par défaut si nécessaire
 }
 
 function goToDetail(id: number) {
@@ -105,7 +105,7 @@ function deleteComponent(id: number) {
                 {{ component.name }}
               </td>
               <td v-if="isAdminActive" class="px-6 py-4 border-b border-gray-200 whitespace-nowrap">
-                Ôé¼{{ component.price }}
+                €{{ component.price }}
               </td>
               <td class="px-6 py-4 border-b border-gray-200 whitespace-nowrap">
                 {{ component.purchaseDate }}